Carburetor



May 1927' w. H. K. WILLIAMS CARBURETOR Filed June 26, 1926 Patented May24, 1927.

UNITED STATES PATENT OFFICE.

WILLIAMH. K. WILLIAMS, OF COTTONWOOD, SOUTH DAKOTA.

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Application filed J'une 26,'1926. Serial No; 118,770.

This invention relates to carburetors and has for an important objectthereof'the pro-' vision of means for thoroughly agitating the gasolinewithin the carburetor to enable proper association of air admitted tothemeans are provided. for varying the opera tion of the agitator inaccordance with the speed of the engine, so that a tion may be had atall times.

A further object'of the invention is to provide a device of thischaracter in which the fuel content of the casing may be heated, if sodesired, so that the mixture of the fuel with the air is promoted.

These and other objects I attain'by the construction shown in theaccompan ing drawings, wherein for the purpose of 1 lustration isshown-a preferred embodiment of my invention and wherein Figure 1 is avertical sectional view througha carburetor constructed in accordancewith my invention;

Figure 2 is a section on the line 2-2 of Figure 1.

Referring now more particularly to the drawings, the numeral 10generally designates a casing having associated therewith means formaintaining a constant liquid fuel level therein. In the presentillustration, this means comprises a second casing 11 subdivided toprovide upper and lower chambers 12 and 13. The chamber 13 has arrangedtherein a float 14 controlling admission of fuel from 'a fuel feed line15 and this chamber is connected with the casing 10 below the level offuel within the chamber 13 by a conduit 16 including a check valve 17opening toward the casing 10.

The casings 10 and 11 are preferably secured to a conduit 18, whichconduit is one of two branches 19 of anexhaust pipe 20. At the junctionof'the branches 18 and 19 with the conduit 20, a valve 21 is disposedfor directing the products of combustion passing through the exhaustpipe to either branch or for permitting a desired amount of theseproducts to pass to either branch.

proper agita- A This provides a means for heating the chamber 13 of thecasing 11 and the casing 10, so that the liquid fuel therein may berendered much more volatile and, therefore readily combined with air.

Within the chamber 10 and secured to the side and bottom walls of thischamber are a series of radially directed baliles 22 between two ofwhich the conduit 16 opens. to the casing 10. The chamber 12 is in theform of an air' washer, being designed to contain a liquid, generallyindicated at 23,

and having an air inlet pipe 24 which opensv into the chamber below thelevel of the liquid. Above the level of the liquid, the

chamber is provided-with an outlet'25 communicating with the casing 10between two adjacent baflies 22. Axially of the bottom of the casing astep bearing 26 is provided to receive the lower end of a shaft 27 andpermit a limited vertical movement thereof.

This shaft at the upper end of the casin passes through a packing gland28 mounted upon the upper end wall 29 of the casing. This upper end wallprovides a bracket 30 within which is rotatably mounted a shaft 31having arranged therein an overrunning clutch 32 of any suitablecharacter to permit the end of the shaft engaged in the bracket to berotated more rapidly than the shaft at the opposite side of thisoverrunning clutch which is attached to and driven from the engineshaft, as indicated. The bracket 30 has at. its upper end a horizontalextension 33 rotatably receiving the hub of a horizontally disposedbevel gear 34 splined to the upper end of the shaft27. Below thebracket, the hub of this gear has attached thereto centrifugal governorelements 35 .operatively connected .with the.

shaft 27 between collars 36 secured thereto by links 37.. The governorelements may have associated therewith a control spring 38, if sodesired. I

- The gear 34 has upon its upper-surface an operating handle 39 wherebyit may be rotated and this gear meshes with a gear 40 secured to theshaft 31. The shaft 27 within the casing has secured thereto a propellerblade 41 which, when the liquid fuel is at its normal level and thevehicle is operatingat a low rate of speed, is completely submerged inthe liquid. As the speed of the vehicle increases, the governor elementsserve to elevate the shaft 27 and with it the propeller blade 41, sothat the pro eller blade is only partially submerged an the a itationapplied to the fuel is according y reduced. The baffies 22 serve toincrease the agitation Within the casing in that they prevent the fluidfrom circulating with the propeller blade by breaking up the circularthrust thereof. It will be quite obvious that agitation of the fluid bythe blade will cause the fluid to more readily mingle with the airintroduced to the casing. Since the agitation is reduced in accordancewith the speed of the engine, it will, of course, follow that themixture will be leaner at high speeds in accordance with the needs ofthe engine.

The casing 10 will, of course, be provided with the usual outlet 42 forconnection with the intake manifold of the engine and having a throttlevalve 43 controlling the passage of the explosive mixture therethrough.In starting the engine, agitation of the mixture to provide an explosivecharge within the casing 10 which may be withdrawn for primary use inthe engine may be provided by rotating the gear 34 through the bandle39.

Since the construction hereinbefore set forth is capable of a certainrange of change and modification without materially departing from thespirit of the invention, I do not limit myself to such specificstructure except as hereinafter claimed.

I claim 1. In a carburetor and in combination a casing, meansformaintaining a predetermined liquid level within the casing, means forintroducing air to the casing below the level of liquid therein, meansnormally submerged in the liquid for agitating the liquid and adapted tobe driven from the shaft of the engine to which the carburetor isattached and means for partially withdraw ing the agitating device fromthe liquid as the speed of the engine increases.

2. In a carburetor and in combination a casing, means for maintaining apredetermined liquid level within the casing, means for introducing airto the casing below the I level of liquid therein, meansnormallysubmerged in the liquid for agitating the liquid and adapted tobe driven from the shaft of the engine to which the carburetor isattached, means for partially withdrawing the agitating device from theliquid as the speed of the engine increases and means for manuallyoperating the agitating device.

In testimony whereof I hereunto afiix my signature. 5

WILLIAM H. K. WILLIAMS

